Tides Today & Tomorrow in Upper Guadalupe Slough, CA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Upper Guadalupe Slough, CA.
Next low tide : 6:03 pm (3.6 ft)
Next high tide : in 22m at 1:08 pm (7.7 ft)
Sunset today : 8:30 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #9414549
Common Questions About Tides

Upper Guadalupe Slough, CA Tides - Mar 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:539.69:137.41:373.03:020.16:376:02First Quarter1Fri
2Sat8:029.510:087.92:573.04:030.06:366:03Waxing Gibbous2Sat
3Sun9:059.510:538.34:042.74:54-0.16:346:04Waxing Gibbous3Sun
4Mon10:019.411:318.54:592.35:37-0.16:336:05Waxing Gibbous4Mon
5Tue10:519.45:462.06:140.06:326:06Waxing Gibbous5Tue
6Wed12:048.711:35 AM9.26:271.76:480.26:306:07Full Moon6Wed
7Thu12:348.812:178.97:051.47:190.56:296:08Full Moon7Thu
8Fri1:008.812:578.67:411.27:480.86:276:09Full Moon8Fri
9Sat1:268.91:368.28:161.08:181.26:266:10Full Moon9Sat
10Sun1:518.93:167.79:510.99:471.67:247:11Waning Gibbous10Sun
11Mon3:188.94:007.310:280.910:192.07:237:12Waning Gibbous11Mon
12Tue3:488.94:496.811:090.810:532.57:217:13Waning Gibbous12Tue
13Wed4:238.85:496.411:570.911:342.97:207:13Waning Gibbous13Wed
14Thu5:058.67:066.112:530.97:187:14Third Quarter14Thu
15Fri5:588.48:316.212:303.21:590.87:177:15Third Quarter15Fri
16Sat7:018.39:406.61:503.43:070.67:157:16Third Quarter16Sat
17Sun8:108.410:287.13:143.34:080.37:147:17Third Quarter17Sun
18Mon9:178.711:067.64:202.95:000.17:127:18Waning Crescent18Mon
19Tue10:189.111:428.25:142.45:45-0.17:117:19Waning Crescent19Tue
20Wed11:159.46:021.86:28-0.27:097:20Waning Crescent20Wed
21Thu12:168.812:109.56:481.17:09-0.17:087:21New Moon21Thu
22Fri12:519.41:049.57:350.47:510.27:067:22New Moon22Fri
23Sat1:2710.01:589.38:22-0.28:330.67:057:23New Moon23Sat
24Sun2:0510.42:549.09:11-0.69:161.17:037:24Waxing Crescent24Sun
25Mon2:4510.63:528.510:02-0.810:021.67:027:24Waxing Crescent25Mon
26Tue3:2910.54:567.910:57-0.710:542.17:007:25Waxing Crescent26Tue
27Wed4:1710.26:067.511:57-0.511:562.66:597:26Waxing Crescent27Wed
28Thu5:129.77:237.31:04-0.36:577:27First Quarter28Thu
29Fri6:169.18:397.41:122.92:160.06:567:28First Quarter29Fri
30Sat7:288.69:437.82:382.93:260.16:547:29First Quarter30Sat
31Sun8:438.310:338.13:552.64:280.26:537:30Waxing Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9414549)

Common Questions About Upper Guadalupe Slough, CA Tides

Show All
What time does the tide turn (slack tide) in Upper Guadalupe Slough, CA today?

Slack tide in Upper Guadalupe Slough, CA is approximately 3:35 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Upper Guadalupe Slough, CA?

Upper Guadalupe Slough, CA is currently in a spring phase. Tonight's moon is 4% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Upper Guadalupe Slough, CA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Upper Guadalupe Slough, CA?

Tide predictions for Upper Guadalupe Slough, CA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Upper Guadalupe Slough, CA?

Tide data for Upper Guadalupe Slough, CA is sourced from NOAA Station #9414549. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9414549.

What is the moon phase in Upper Guadalupe Slough, CA tonight?

Tonight the moon over Upper Guadalupe Slough, CA is Waning Crescent (4% illuminated). This places Upper Guadalupe Slough, CA in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA